/Engine/Source/Editor/Kismet/Public/BlueprintEditor.h
Get the graph appearance of a specific graph,GetCurrentGraphAppearance()uses the currently focused graph.
virtual [FGraphAppearanceInfo](API\Editor\UnrealEd\FGraphAppearanceInfo) GetGraphAppearance ( class [UEdGraph](API\Runtime\Engine\EdGraph\UEdGraph) * InGraph ) const